Victorinox Swiss Army Watch Airboss Mach 9 241722. Like its wearer, the Airboss Mach 9 watch is born to travel at high speed. With engineering inspired by aeronautics, it knows no headwind and is ready for any adventure. For everybody living in the fast lane, this effortlessly stylish timepiece always keeps up with your pace and ensures that you meet every challenge with sleek elegance.